Figure 3
Comparison of X—H bond lengths (in Å) obtained from various HAR refinements and multipole models. The acidic and phenolic O—H bonds have individual entries, whereas O—H(w) is an average of four bonds and similarly Car-H is an average of all the aromatic C—H bonds. The `Neutron' entry refers to averaged values from Allen & Bruno (2010). The `MP' entry refers to the refined distances, but it has to be recalled that the X—H bond lengths were restrained to the standard neutron values. |